pload XDE

set subgroup xde

proc GetPercent {Value GoodValue} {
   set Percent 0.
   if {${GoodValue} != 0.} {
      set Percent [expr abs(${Value} - ${GoodValue}) / abs(double(${GoodValue})) * 100.]
   } elseif {${Value} != 0.} {
      set Percent [expr abs(${GoodValue} - ${Value}) / abs(double(${Value})) * 100.]
   } else {
      set Percent 0.
   }
   return ${Percent}
}
